How to lose $172,222 a second for 45 minutes

Re:How to lose $172,222 a second for 45 minutes by telephonetemp on Tuesday October 22, 2013 @02:43AM (#6590153)

I assumed they had redundant servers with consensus algorithms in place in finance but apparently they don't. Would it be impractical?

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Re:How to lose $172,222 a second for 45 minutes by clearly on Tuesday October 22, 2013 @04:18AM (#6590408)

Yes- latency is a big issue for this type of trading system.

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Re:How to lose $172,222 a second for 45 minutes by telephonetemp on Tuesday October 22, 2013 @04:27AM (#6590440)

Perhaps you could do consensus checking retrospectively? I.e., out of N supposedly identical servers a random one gets to make any given decision in real time but then a separate system goes back and compares all servers' results and stops their operation if there's divergence?

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Re:How to lose $172,222 a second for 45 minutes by clearly on Tuesday October 22, 2013 @05:06AM (#6590568)

I guess, but it's more typical to do something like cap the total trading volume, position, risk limits etc. It's a more fundamental check on what you are doing.

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Re:How to lose $172,222 a second for 45 minutes by sgt101 on Tuesday October 22, 2013 @04:55PM (#6594917)

Maybe the extra step in the workflow prohibits HFT?

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Re:How to lose $172,222 a second for 45 minutes by marincounty on Tuesday October 22, 2013 @05:33AM (#6590658)

Ya, I just assumed they would have at least 3 levels of redundancy, or at least a person there who could pull 8 cords?

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